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Note 9 - Preferred Stock (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Schedule of Preferred Stock [Table Text Block]

		September 30, 2019								December 31, 2018
						Carrying								Carrying
		Shares				Value				Shares				Value
Series B Convertible Preferred Stock			100			$	76,095				100			$	76,095
Series C Convertible Preferred Stock			-				-				2,150				705,238
Series E Convertible Preferred Stock			-				-				1,200				1,190,000
Series H Convertible Preferred Stock			2,254				1,545,728				-				-
Series I Convertible Preferred Stock			700				700,000				-				-
Total			3,054			$	2,321,823				3,450			$	1,971,333